0 双写一致性之定时更新
# 一旦加入缓存，就会出现数据不一致的请请求
# 双写一致性问题
-1 改数据，删缓存
-2 改数据，改缓存
-3 定时更新
# 首页轮播图存在双写一致性问题这个问题
-以现在的技术水平（信号），做不到 ：改数据删缓存
-能选择的就是定时更新
-轮播图接口---》实时性要求没有那么高
# celery的定时任务
-定时更新轮播图
0 异步发送短信
# 视图函数
@action(methods=['GET'], detail=False)
def send_sms(self, request, *args, **kwargs):
mobile = request.query_params.get('mobile', None)
code = get_code() # 把code存起来，放到缓存中，目前在内存，后期换别的
cache.set('send_sms_code_%s' % mobile, code)
if mobile:
# 开启一个线程，执行发送短信
# t = Thread(target=send_sms_by_mobile, args=[mobile, code])
# t.start()
# 提交异步任务---》异步发送
res = send_sms.delay(mobile,code)
print(res)
return APIResponse(msg='短信已发送')
raise APIException('手机号没有携带')
# 任务
from libs.send_tx_sms import send_sms_by_mobile
@app.task
def send_sms(mobile, code):
res=send_sms_by_mobile(mobile,code)
if res:
return '%s的短信发送成功，验证码是%s'%(mobile,code)
else:
return '%s的短信发送失败'%mobile
1 异步秒杀逻辑前后端
1.1 前端 Sckill.vue
<template>
<div>
<h2>go语言从入门到放弃</h2>
<el-button type="danger" @click="handleSckill">秒杀</el-button>
</div>
</template>
<script>
export default {
name: "Sckill",
data() {
return {
t: null,
task_id: '',
}
},
methods: {
handleSckill() {
this.$axios.post(`${this.$settings.BASE_URL}user/sckill/`, {
name: "性感帽子",
}).then(res => {
if (res.data.code == 100) {
alert('您正在排队')
this.task_id = res.data.task_id
// 起个转圈的东西
// 起定时任务
this.t = setInterval(() => {
this.$axios.get(`${this.$settings.BASE_URL}user/sckill/?task_id=${this.task_id}`).then(res => {
if (res.data.code == 100 || res.data.code == 101) {
this.$message(res.data.msg)
//销毁定时器
clearInterval(this.t)
this.t = null
} else {
console.log('过会再查')
}
})
}, 3000)
}
})
}
}
}
</script>
<style scoped>
</style>
1.2 后端
视图类
from celery_task.user_task import sckill_goods
from celery_task.celery import app
from celery.result import AsyncResult
class SckillView(APIView):
def post(self, request, *args, **kwargs):
name = request.data.get('name')
# 提交秒杀异步任务
res = sckill_goods.delay(name)
return APIResponse(task_id=str(res))
def get(self, request, *args, **kwargs):
task_id = request.GET.get('task_id')
a = AsyncResult(id=task_id, app=app)
if a.successful(): # 正常执行完成
result = a.get() # 任务返回的结果
if result:
return APIResponse(code=100, msg='秒杀成功')
else:
return APIResponse(code=101, msg='秒杀失败')
elif a.status == 'STARTED':
print('任务已经开始被执行')
return APIResponse(code=103, msg='还在排队')
else:
return APIResponse(code=102, msg='没成功')
路由
urlpatterns = [
path('sckill/', SckillView.as_view()),
]
任务
@app.task
def sckill_goods(name):
# 逻辑是：开启事务---》扣减库存---》生成订单
import time
time.sleep(6)
res = random.choice([100, 102])
if res == 100:
print('%s被秒杀成功了' % name)
return True
else:
print('%s被秒杀失败了' % name)
return False
2 课程页页面前端
#1 前端 新建三个组件
LightCourse.vue
FreeCourse.vue
ActualCourse.vue
# 2 配置路由
import FreeCourse from "@/views/FreeCourse";
import ActualCourse from "@/views/ActualCourse";
import LightCourse from "@/views/LightCourse";
{
path: '/free-course',
name: 'free-course',
component: FreeCourse
},
{
path: '/actual-course',
name: 'actual-course',
component: ActualCourse
},
{
path: '/light-course',
name: 'light-course',
component: LightCourse
},
# 3 FreeCourse.vue
<template>
<div class="course">
<Header></Header>
<div class="main">
<!-- 筛选条件 -->
<div class="condition">
<ul class="cate-list">
<li class="title">课程分类:</li>
<li class="this">全部</li>
<li>Python</li>
<li>Linux运维</li>
<li>Python进阶</li>
<li>开发工具</li>
<li>Go语言</li>
<li>机器学习</li>
<li>技术生涯</li>
</ul>
<div class="ordering">
<ul>
<li class="title">筛 选:</li>
<li class="default this">默认</li>
<li class="hot">人气</li>
<li class="price">价格</li>
</ul>
<p class="condition-result">共21个课程</p>
</div>
</div>
<!-- 课程列表 -->
<div class="course-list">
<div class="course-item">
<div class="course-image">
<img src="@/assets/img/course-cover.jpeg" alt="">
</div>
<div class="course-info">
<h3>Python开发21天入门 <span><img src="@/assets/img/avatar1.svg" alt="">100人已加入学习</span></h3>
<p class="teather-info">Alex 金角大王 老男孩Python教学总监 <span>共154课时/更新完成</span></p>
<ul class="lesson-list">
<li><span class="lesson-title">01 | 第1节：初识编码</span> <span class="free">免费</span></li>
<li><span class="lesson-title">01 | 第1节：初识编码初识编码</span> <span class="free">免费</span></li>
<li><span class="lesson-title">01 | 第1节：初识编码</span></li>
<li><span class="lesson-title">01 | 第1节：初识编码初识编码</span></li>
</ul>
<div class="pay-box">
<span class="discount-type">限时免费</span>
<span class="discount-price">￥6.00元</span>
<span class="original-price">原价：9.00元</span>
<span class="buy-now">立即购买</span>
</div>
</div>
</div>
<div class="course-item">
<div class="course-image">
<img src="@/assets/img/course-cover.jpeg" alt="">
</div>
<div class="course-info">
<h3>Python开发21天入门 <span><img src="@/assets/img/avatar1.svg" alt="">100人已加入学习</span></h3>
<p class="teather-info">Alex 金角大王 老男孩Python教学总监 <span>共154课时/更新完成</span></p>
<ul class="lesson-list">
<li><span class="lesson-title">01 | 第1节：初识编码</span> <span class="free">免费</span></li>
<li><span class="lesson-title">01 | 第1节：初识编码初识编码</span> <span class="free">免费</span></li>
<li><span class="lesson-title">01 | 第1节：初识编码</span></li>
<li><span class="lesson-title">01 | 第1节：初识编码初识编码</span></li>
</ul>
<div class="pay-box">
<span class="discount-type">限时免费</span>
<span class="discount-price">￥0.00元</span>
<span class="original-price">原价：9.00元</span>
<span class="buy-now">立即购买</span>
</div>
</div>
</div>
<div class="course-item">
<div class="course-image">
<img src="@/assets/img/course-cover.jpeg" alt="">
</div>
<div class="course-info">
<h3>Python开发21天入门 <span><img src="@/assets/img/avatar1.svg" alt="">100人已加入学习</span></h3>
<p class="teather-info">Alex 金角大王 老男孩Python教学总监 <span>共154课时/更新完成</span></p>
<ul class="lesson-list">
<li><span class="lesson-title">01 | 第1节：初识编码</span> <span class="free">免费</span></li>
<li><span class="lesson-title">01 | 第1节：初识编码初识编码</span> <span class="free">免费</span></li>
<li><span class="lesson-title">01 | 第1节：初识编码</span></li>
<li><span class="lesson-title">01 | 第1节：初识编码初识编码</span></li>
</ul>
<div class="pay-box">
<span class="discount-type">限时免费</span>
<span class="discount-price">￥0.00元</span>
<span class="original-price">原价：9.00元</span>
<span class="buy-now">立即购买</span>
</div>
</div>
</div>
<div class="course-item">
<div class="course-image">
<img src="@/assets/img/course-cover.jpeg" alt="">
</div>
<div class="course-info">
<h3>Python开发21天入门 <span><img src="@/assets/img/avatar1.svg" alt="">100人已加入学习</span></h3>
<p class="teather-info">Alex 金角大王 老男孩Python教学总监 <span>共154课时/更新完成</span></p>
<ul class="lesson-list">
<li><span class="lesson-title">01 | 第1节：初识编码</span> <span class="free">免费</span></li>
<li><span class="lesson-title">01 | 第1节：初识编码初识编码</span> <span class="free">免费</span></li>
<li><span class="lesson-title">01 | 第1节：初识编码</span></li>
<li><span class="lesson-title">01 | 第1节：初识编码初识编码</span></li>
</ul>
<div class="pay-box">
<span class="discount-type">限时免费</span>
<span class="discount-price">￥0.00元</span>
<span class="original-price">原价：9.00元</span>
<span class="buy-now">立即购买</span>
</div>
</div>
</div>
</div>
</div>
<Footer></Footer>
</div>
</template>
<script>
import Header from "@/components/Header"
import Footer from "@/components/Footer"
export default {
name: "Course",
data() {
return {
category: 0,
}
},
components: {
Header,
Footer,
}
}
</script>
<style scoped>
.course {
background: #f6f6f6;
}
.course .main {
width: 1100px;
margin: 35px auto 0;
}
.course .condition {
margin-bottom: 35px;
padding: 25px 30px 25px 20px;
background: #fff;
border-radius: 4px;
box-shadow: 0 2px 4px 0 #f0f0f0;
}
.course .cate-list {
border-bottom: 1px solid #333;
border-bottom-color: rgba(51, 51, 51, .05);
padding-bottom: 18px;
margin-bottom: 17px;
}
.course .cate-list::after {
content: "";
display: block;
clear: both;
}
.course .cate-list li {
float: left;
font-size: 16px;
padding: 6px 15px;
line-height: 16px;
margin-left: 14px;
position: relative;
transition: all .3s ease;
cursor: pointer;
color: #4a4a4a;
border: 1px solid transparent; /* transparent 透明 */
}
.course .cate-list .title {
color: #888;
margin-left: 0;
letter-spacing: .36px;
padding: 0;
line-height: 28px;
}
.course .cate-list .this {
color: #ffc210;
border: 1px solid #ffc210 !important;
border-radius: 30px;
}
.course .ordering::after {
content: "";
display: block;
clear: both;
}
.course .ordering ul {
float: left;
}
.course .ordering ul::after {
content: "";
display: block;
clear: both;
}
.course .ordering .condition-result {
float: right;
font-size: 14px;
color: #9b9b9b;
line-height: 28px;
}
.course .ordering ul li {
float: left;
padding: 6px 15px;
line-height: 16px;
margin-left: 14px;
position: relative;
transition: all .3s ease;
cursor: pointer;
color: #4a4a4a;
}
.course .ordering .title {
font-size: 16px;
color: #888;
letter-spacing: .36px;
margin-left: 0;
padding: 0;
line-height: 28px;
}
.course .ordering .this {
color: #ffc210;
}
.course .ordering .price {
position: relative;
}
.course .ordering .price::before,
.course .ordering .price::after {
cursor: pointer;
content: "";
display: block;
width: 0px;
height: 0px;
border: 5px solid transparent;
position: absolute;
right: 0;
}
.course .ordering .price::before {
border-bottom: 5px solid #aaa;
margin-bottom: 2px;
top: 2px;
}
.course .ordering .price::after {
border-top: 5px solid #aaa;
bottom: 2px;
}
.course .course-item:hover {
box-shadow: 4px 6px 16px rgba(0, 0, 0, .5);
}
.course .course-item {
width: 1100px;
background: #fff;
padding: 20px 30px 20px 20px;
margin-bottom: 35px;
border-radius: 2px;
cursor: pointer;
box-shadow: 2px 3px 16px rgba(0, 0, 0, .1);
/* css3.0 过渡动画 hover 事件操作 */
transition: all .2s ease;
}
.course .course-item::after {
content: "";
display: block;
clear: both;
}
/* 顶级元素 父级元素 当前元素{} */
.course .course-item .course-image {
float: left;
width: 423px;
height: 210px;
margin-right: 30px;
}
.course .course-item .course-image img {
width: 100%;
}
.course .course-item .course-info {
float: left;
width: 596px;
}
.course-item .course-info h3 {
font-size: 26px;
color: #333;
font-weight: normal;
margin-bottom: 8px;
}
.course-item .course-info h3 span {
font-size: 14px;
color: #9b9b9b;
float: right;
margin-top: 14px;
}
.course-item .course-info h3 span img {
width: 11px;
height: auto;
margin-right: 7px;
}
.course-item .course-info .teather-info {
font-size: 14px;
color: #9b9b9b;
margin-bottom: 14px;
padding-bottom: 14px;
border-bottom: 1px solid #333;
border-bottom-color: rgba(51, 51, 51, .05);
}
.course-item .course-info .teather-info span {
float: right;
}
.course-item .lesson-list::after {
content: "";
display: block;
clear: both;
}
.course-item .lesson-list li {
float: left;
width: 44%;
font-size: 14px;
color: #666;
padding-left: 22px;
/* background: url("路径") 是否平铺 x轴位置 y轴位置 */
background: url("/src/assets/img/play-icon-gray.svg") no-repeat left 4px;
margin-bottom: 15px;
}
.course-item .lesson-list li .lesson-title {
/* 以下3句，文本内容过多，会自动隐藏，并显示省略符号 */
text-overflow: ellipsis;
overflow: hidden;
white-space: nowrap;
display: inline-block;
max-width: 200px;
}
.course-item .lesson-list li:hover {
background-image: url("/src/assets/img/play-icon-yellow.svg");
color: #ffc210;
}
.course-item .lesson-list li .free {
width: 34px;
height: 20px;
color: #fd7b4d;
vertical-align: super;
margin-left: 10px;
border: 1px solid #fd7b4d;
border-radius: 2px;
text-align: center;
font-size: 13px;
white-space: nowrap;
}
.course-item .lesson-list li:hover .free {
color: #ffc210;
border-color: #ffc210;
}
.course-item .pay-box::after {
content: "";
display: block;
clear: both;
}
.course-item .pay-box .discount-type {
padding: 6px 10px;
font-size: 16px;
color: #fff;
text-align: center;
margin-right: 8px;
background: #fa6240;
border: 1px solid #fa6240;
border-radius: 10px 0 10px 0;
float: left;
}
.course-item .pay-box .discount-price {
font-size: 24px;
color: #fa6240;
float: left;
}
.course-item .pay-box .original-price {
text-decoration: line-through;
font-size: 14px;
color: #9b9b9b;
margin-left: 10px;
float: left;
margin-top: 10px;
}
.course-item .pay-box .buy-now {
width: 120px;
height: 38px;
background: transparent;
color: #fa6240;
font-size: 16px;
border: 1px solid #fd7b4d;
border-radius: 3px;
transition: all .2s ease-in-out;
float: right;
text-align: center;
line-height: 38px;
}
.course-item .pay-box .buy-now:hover {
color: #fff;
background: #ffc210;
border: 1px solid #ffc210;
}
</style>
3 课程相关表分析
# 表分析
-课程分类表：id，分类名，继承BaseModel
-跟课程表是一对多，一个分类下有很多课程
-课程表（实战课课表）
-如果一个表：
-不同课程直接，字段可能不一样
-多个课程，多个表
-只写实战课这条线
-章节表：
跟课程是一对多
-课时表
跟章节是一对多
-老师表
-跟课程一对多
# 表的关联关系---》公司中外键都是逻辑外键，不建物理外键
-靠一个东西建立出来的三种关系----》外键
-一对一
-一对多
-多对多
图书 作者 多对多
图书表
id name price
1 xx 33
2 yy 32
作者
id name addr
1 多对 上海
2 大师傅 北京
中间表
id book_id auth_id
1 1 1
2 1 2
3 2 1
3.1 基于对象跨表查询和双下划綫连表查询
#基于对象的跨表查询：
'''
-正：字段
-反：表名小写（一对一是 表名小写，一对多 表名小写_set.all()）
-related_name='coursechapters' 基于对象跨表查反向查询，替换表名小写
'''
#基于双下划线的连表查询：
'''
正：字段
反：表名小写
-related_query_name='xxx' 基于连表查反向查询，替换表名小写
'''
4 课程表数据录入
# 把sql执行
# 把 media文件夹下的图片放到对应位置
INSERT INTO luffy_teacher(id, orders, is_show, is_delete, created_time, updated_time, name, role, title, signature, image, brief) VALUES (1, 1, 1, 0, '2022-07-14 13:44:19.661327', '2022-07-14 13:46:54.246271', 'Alex', 1, '老男孩Python教学总监', '金角大王', 'teacher/alex_icon.png', '老男孩教育CTO & CO-FOUNDER 国内知名PYTHON语言推广者 51CTO学院2016\2017年度最受学员喜爱10大讲师之一 多款开源软件作者 曾任职公安部、飞信、中金公司、NOKIA中国研究院、华尔街英语、ADVENT、汽车之家等公司');
INSERT INTO luffy_teacher(id, orders, is_show, is_delete, created_time, updated_time, name, role, title, signature, image, brief) VALUES (2, 2, 1, 0, '2022-07-14 13:45:25.092902', '2022-07-14 13:45:25.092936', 'Mjj', 0, '前美团前端项目组架构师', NULL, 'teacher/mjj_icon.png', '是马JJ老师, 一个集美貌与才华于一身的男人，搞过几年IOS，又转了前端开发几年，曾就职于美团网任高级前端开发，后来因为不同意王兴(美团老板)的战略布局而出家做老师去了，有丰富的教学经验，开起车来也毫不含糊。一直专注在前端的前沿技术领域。同时，爱好抽烟、喝酒、烫头(锡纸烫)。 我的最爱是前端，因为前端妹子多。');
INSERT INTO luffy_teacher(id, orders, is_show, is_delete, created_time, updated_time, name, role, title, signature, image, brief) VALUES (3, 3, 1, 0, '2022-07-14 13:46:21.997846', '2022-07-14 13:46:21.997880', 'Lyy', 0, '老男孩Linux学科带头人', NULL, 'teacher/lyy_icon.png', 'Linux运维技术专家，老男孩Linux金牌讲师，讲课风趣幽默、深入浅出、声音洪亮到爆炸');
-- 分类表
INSERT INTO luffy_course_category(id, orders, is_show, is_delete, created_time, updated_time, name) VALUES (1, 1, 1, 0, '2022-07-14 13:40:58.690413', '2022-07-14 13:40:58.690477', 'Python');
INSERT INTO luffy_course_category(id, orders, is_show, is_delete, created_time, updated_time, name) VALUES (2, 2, 1, 0, '2022-07-14 13:41:08.249735', '2022-07-14 13:41:08.249817', 'Linux');
-- 课程表
INSERT INTO luffy_course(id, orders, is_show, is_delete, created_time, updated_time, name, course_img, course_type, brief, level, pub_date, period, attachment_path, status, students, sections, pub_sections, price, course_category_id, teacher_id) VALUES (1, 1, 1, 0, '2022-07-14 13:54:33.095201', '2022-07-14 13:54:33.095238', 'Python开发21天入门', 'courses/alex_python.png', 0, 'Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土&&&Python从入门到入土', 0, '2022-07-14', 21, '', 0, 231, 120, 120, 0.00, 1, 1);
INSERT INTO luffy_course(id, orders, is_show, is_delete, created_time, updated_time, name, course_img, course_type, brief, level, pub_date, period, attachment_path, status, students, sections, pub_sections, price, course_category_id, teacher_id) VALUES (2, 2, 1, 0, '2022-07-14 13:56:05.051103', '2022-07-14 13:56:05.051142', 'Python项目实战', 'courses/mjj_python.png', 0, '', 1, '2022-07-14', 30, '', 0, 340, 120, 120, 99.00, 1, 2);
INSERT INTO luffy_course(id, orders, is_show, is_delete, created_time, updated_time, name, course_img, course_type, brief, level, pub_date, period, attachment_path, status, students, sections, pub_sections, price, course_category_id, teacher_id) VALUES (3, 3, 1, 0, '2022-07-14 13:57:21.190053', '2022-07-14 13:57:21.190095', 'Linux系统基础5周入门精讲', 'courses/lyy_linux.png', 0, '', 0, '2022-07-14', 25, '', 0, 219, 100, 100, 39.00, 2, 3);
-- 章节表
INSERT INTO luffy_course_chapter(id, orders, is_show, is_delete, created_time, updated_time, chapter, name, summary, pub_date, course_id) VALUES (1, 1, 1, 0, '2022-07-14 13:58:34.867005', '2022-07-14 14:00:58.276541', 1, '计算机原理', '', '2022-07-14', 1);
INSERT INTO luffy_course_chapter(id, orders, is_show, is_delete, created_time, updated_time, chapter, name, summary, pub_date, course_id) VALUES (2, 2, 1, 0, '2022-07-14 13:58:48.051543', '2022-07-14 14:01:22.024206', 2, '环境搭建', '', '2022-07-14', 1);
INSERT INTO luffy_course_chapter(id, orders, is_show, is_delete, created_time, updated_time, chapter, name, summary, pub_date, course_id) VALUES (3, 3, 1, 0, '2022-07-14 13:59:09.878183', '2022-07-14 14:01:40.048608', 1, '项目创建', '', '2022-07-14', 2);
INSERT INTO luffy_course_chapter(id, orders, is_show, is_delete, created_time, updated_time, chapter, name, summary, pub_date, course_id) VALUES (4, 4, 1, 0, '2022-07-14 13:59:37.448626', '2022-07-14 14:01:58.709652', 1, 'Linux环境创建', '', '2022-07-14', 3);
-- 课时表
INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (1, 1, 0, '2022-07-14 14:02:33.779098', '2022-07-14 14:02:33.779135', '计算机原理上', 1, 2, NULL, NULL, '2022-07-14 14:02:33.779193', 1, 1);
INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (2, 1, 0, '2022-07-14 14:02:56.657134', '2022-07-14 14:02:56.657173', '计算机原理下', 2, 2, NULL, NULL, '2022-07-14 14:02:56.657227', 1, 1);
INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (3, 1, 0, '2022-07-14 14:03:20.493324', '2022-07-14 14:03:52.329394', '环境搭建上', 1, 2, NULL, NULL, '2022-07-14 14:03:20.493420', 0, 2);
INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (4, 1, 0, '2022-07-14 14:03:36.472742', '2022-07-14 14:03:36.472779', '环境搭建下', 2, 2, NULL, NULL, '2022-07-14 14:03:36.472831', 0, 2);
INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (5, 1, 0, '2022-07-14 14:04:19.338153', '2022-07-14 14:04:19.338192', 'web项目的创建', 1, 2, NULL, NULL, '2022-07-14 14:04:19.338252', 1, 3);
INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (6, 1, 0, '2022-07-14 14:04:52.895855', '2022-07-14 14:04:52.895890', 'Linux的环境搭建', 1, 2, NULL, NULL, '2022-07-14 14:04:52.895942', 1, 4);
5 课程主页接口
# 课程分类接口
# 查询所有课程接口
-带过滤
-带排序
-带分页
视图类
from .models import CourseCategory
from rest_framework.viewsets import GenericViewSet
from rest_framework.mixins import ListModelMixin
from .serializer import CourseCategorySerializer
from utils.common_mixin import CommonListModelMixin as ListModelMixin
class CourseCategoryView(GenericViewSet, ListModelMixin):
# 查询所有
queryset = CourseCategory.objects.filter(is_delete=False, is_show=True).order_by('orders')
serializer_class = CourseCategorySerializer
序列化类
class CourseCategorySerializer(serializers.ModelSerializer):
class Meta:
model = CourseCategory
fields = ['id','name']
路由
from django.contrib import admin
from django.urls import path
from rest_framework.routers import SimpleRouter
router = SimpleRouter()
from .views import CourseCategoryView
router.register('category', CourseCategoryView, 'category')
urlpatterns = [
]
urlpatterns += router.urls